\usepackage[UTF8,noindent]{ctexcap}
\usepackage{amsmath}
\usetheme{Warsaw}
\newtheorem{thm}{定理}
\useoutertheme{infolines}%显示当前节以及小节
\usepackage{graphicx,makecell,threeparttablex}%图形包，图标粗线包,表格注释包tablenotes环境
\setbeamertemplate{footline}%无底栏
